Hello everyone, thanks for coming by to read my concept to critique it.

The basic concept I got is of a male adolescent who if in a big mental distress, materializes the fears/traumas of himself, or others if the negative energy are strong enough into his own body converting him into a monster which form varies on the subject's mental state which can grow into something giant if the mental distress is extreme, if the subject calms down and goes back to his normal state he will remember parts of it as a nightmare or a dream. He seems to have double personality in which anything that makes him feel uneasy might lead to a rampage.

The backstory I have for now is that one of his parents was from another dimension or reality and that his anomalous activity was first seen as a child when he killed a foundation member after watching them contain an scp brutally the trauma led to the rampage and his containment to be designated as an scp.

The containment idea is of very reinforced materials and the room disguised as a normal teenage room, giving him limited access to certain things he ask and letting him walk around the facility or sector making him believe he is part of there as a researcher in training or someone living there, as all this is a disguised as the facility he is in is just the real containment made to evade any mental distress in which case he rampages, re-containment should be easier depending on its form. The point of the rooms are to supress the second personality or its habits which leads to the rampages either physically or mentally.

The monster form like stated may vary in shape, color, and behaviour as its dependant of what caused the mental distress or whatever fear the subject is going through materializing it on his body.

This is just the concept which keeps being elaborated on, I might edit it with updates but i wanted to post it to recieve initial critics of the concept.

the negative energy are strong enough into his own body converting him into a monster which form varies on the subject's mental state which can grow into something giant if the mental distress is extreme

So… like the Hulk, but for anxiety and fear rather than anger?

He seems to have double personality in which anything that makes him feel uneasy might lead to a rampage.

"Rage states" tend to be near-automatic downvote material. We see it so often in low-quality humanoid articles that it's become somewhat of a running joke. You can still use the aggression bit if you really want, but it'll be harder for the audience to take the piece seriously if you do.

The backstory I have for now is that one of his parents was from another dimension or reality and that his anomalous activity was first seen as a child when he killed a foundation member after watching them contain an scp brutally

That's just incompetence on the Foundation's part. Why on earth did they let this kid witness a "brutal containment"?

letting him walk around the facility or sector making him believe he is part of there as a researcher in training or someone living there,

Definitely don't do this. Kid's got no skills in the labs and he's got no industry experience. Furthermore, if he gets to walk around the facility the way that even plenty of actual employees don't get to do, he'll see that he's clearly different from everyone else there and there's the chance that he'll see something else he's not supposed to. Keeping him in an indefinite coma would be less of a security liability.

Do you think I should scrap the idea overall then and salvage what I can?

Depends on how much time and effort you're willing to put into writing it, and how much you enjoy the topic. Plenty of authors work on pieces that are more labor of love than anything—they really enjoy the process and the topic, even though the piece hovers in the low positives or ends up deleted.

If you're not super invested in seeing this through, by all means leave it to simmer for another time or scrap it. If you're really into making this work somehow, go ahead and salvage.

I’m getting heavy vibes from equal parts 1055 and 2006, but that doesn’t mean you should just give up on the idea. I’d recommend giving both articles a read and putting a unique spin on the concept to set it apart from them.